If you were doubting the number of tools available and how it can be a problem to select and manage them, just look at the growth in the number of marketing technology applications over the last few years. For Scott Brinker's Marketing Technology landscape -it's tripled since 2014, and grown tenfold since 2012! In the current 2018 version it now has over 5,000 entries.
High ranking metrics will result in getting your site on the top position of several charts such as Top Alexa sites, Top WOT sites and so more. People usually go through these lists to discover new sites and hence you will be getting referral traffic as well. Who knows? Some of those traffic may be your next big client or loyal reader of your blog.